| empress | (noun) a woman emperor or the wife of an emperor | - |
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| emptiness | (noun) the quality of being valueless or futile | Synonyms: vanity |
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| (noun) an empty area or space | Synonyms: vacancy, vacuum, void |
| (noun) the state of containing nothing | - |
| (noun) having an empty stomach | - |
| emptor | (noun) a person who buys | Synonyms: buyer, purchaser, vendee |
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| empty | (noun) a container that has been emptied | - |
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| emptying | (noun) the act of removing the contents of something | Synonyms: evacuation, voidance |
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| empyema | (noun) a collection of pus in a body cavity (especially in the lung cavity) | - |
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| empyrean | (noun) the apparent surface of the imaginary sphere on which celestial bodies appear to be projected | Synonyms: celestial sphere, firmament, heavens, sphere, vault of heaven, welkin |
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| emu | (noun) any of various systems of units for measuring electricity and magnetism | Synonyms: electromagnetic unit |
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| (noun) large Australian flightless bird similar to the ostrich but smaller | Synonyms: Dromaius novaehollandiae, Emu novaehollandiae |
| emulation | (noun) effort to equal or surpass another | - |
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| (noun) (computer science) technique of one machine obtaining the same results as another | - |
| (noun) ambition to equal or excel | - |
| emulator | (noun) someone who copies the words or behavior of another | Synonyms: ape, aper, copycat, imitator |
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| emulsifier | (noun) a surface-active agent that promotes the formation of an emulsion | - |
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| emulsion | (noun) a light-sensitive coating on paper or film; consists of fine grains of silver bromide suspended in a gelatin | Synonyms: photographic emulsion |
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| (noun) (chemistry) a colloid in which both phases are liquids | - |
| emunctorium | (noun) a white linen cloth which is used to wipe the chalice after each communicant partakes. | Synonyms: purificator, purificatorium |
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| en | (noun) half the width of an em | Synonyms: nut |
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| enactment | (noun) acting the part of a character on stage; dramatically representing the character by speech and action and gesture | Synonyms: characterization, personation, portrayal |
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| (noun) the passing of a law by a legislative body | Synonyms: passage |
| (noun) a legal document codifying the result of deliberations of a committee or society or legislative body | Synonyms: act |
| enalapril | (noun) an ACE inhibitor (trade name Vasotec) that blocks the formation of angiotensin in the kidney and so results in vasodilation; administered after heart attacks | Synonyms: Vasotec |
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| enallage | (noun) a substitution of part of speech or gender or number or tense etc. (e.g., editorial `we' for `I') | - |
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| enamel | (noun) any smooth glossy coating that resembles ceramic glaze | - |
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| (noun) a paint that dries to a hard glossy finish | - |
| (noun) hard white substance covering the crown of a tooth | Synonyms: tooth enamel |
| (noun) a colored glassy compound (opaque or partially opaque) that is fused to the surface of metal or glass or pottery for decoration or protection | - |
| enamelware | (noun) cooking utensil of enameled iron | - |
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| enamine | (noun) an amine containing the double bond linkage -C=C-N- | - |
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| enamoredness | (noun) a feeling of love or fondness | Synonyms: amorousness |
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| enanthem | (noun) eruption on a mucous membrane (as the inside of the mouth) occurring as a symptom of a disease | Synonyms: enanthema |
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| enanthema | (noun) eruption on a mucous membrane (as the inside of the mouth) occurring as a symptom of a disease | Synonyms: enanthem |
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| enantiomer | (noun) either one of a pair of compounds (crystals or molecules) that are mirror images on each other but are not identical | Synonyms: enantiomorph |
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| enantiomorph | (noun) either one of a pair of compounds (crystals or molecules) that are mirror images on each other but are not identical | Synonyms: enantiomer |
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| enantiomorphism | (noun) the relation of opposition between crystals or molecules that are reflections of one another | Synonyms: mirror-image relation |
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| enarthrosis | (noun) a freely moving joint in which a sphere on the head of one bone fits into a rounded cavity in the other bone | Synonyms: articulatio spheroidea, ball-and-socket joint, cotyloid joint, enarthrodial joint, spheroid joint |
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| enate | (noun) one related on the mother's side | Synonyms: matrikin, matrilineal kin, matrilineal sib, matrisib |
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| enation | (noun) a natural projection or outgrowth from a plant body or organ | Synonyms: plant process |
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| (noun) line of descent traced through the maternal side of the family | Synonyms: cognation, matrilineage |
| encainide | (noun) antiarrhythmic drug (trade name Enkaid) used to treat life-threatening arrhythmias but increases the risk of sudden death in heart attack patients | Synonyms: Enkaid |
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| encampment | (noun) the act of encamping and living in tents in a camp | Synonyms: bivouacking, camping, tenting |
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| (noun) temporary living quarters specially built by the army for soldiers | Synonyms: bivouac, camp, cantonment |
| (noun) a site where people on holiday can pitch a tent | Synonyms: bivouac, campground, camping area, camping ground, camping site, campsite |
| encapsulation | (noun) the process of enclosing (as in a capsule) | - |
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| (noun) the condition of being enclosed (as in a capsule) | - |
| encasement | (noun) the act of enclosing something in a case | Synonyms: incasement |
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| encaustic | (noun) a paint consisting of pigment mixed with melted beeswax; it is fixed with heat after application | - |
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| encephalartos | (noun) any of numerous cycads of the genus Encephalartos having stout cylindrical trunks and a terminal crown of long often spiny pinnate leaves | - |
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| encephalitis | (noun) inflammation of the brain usually caused by a virus; symptoms include headache and neck pain and drowsiness and nausea and fever (`phrenitis' is no longer in scientific use) | Synonyms: cephalitis, phrenitis |
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| encephalocele | (noun) protrusion of brain tissue through a congenital fissure in the skull | - |
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| encephalogram | (noun) an X ray of the brain made by replacing spinal fluid with a gas (usually oxygen) to improve contrast | Synonyms: pneumoencephalogram |
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| (noun) a graphical record of electrical activity of the brain; produced by an electroencephalograph | Synonyms: EEG, electroencephalogram |
| encephalograph | (noun) Any apparatus used to produce an encephalogram by recording electric currents generated by the brain. | - |
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| encephalography | (noun) roentgenography of the brain after spinal fluid has been replaced by a gas (usually oxygen); produces an encephalogram | - |
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| encephalomeningitis | (noun) inflammation of the brain and spinal cord and their meninges | Synonyms: cerebromeningitis, meningoencephalitis |
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| encephalomyelitis | (noun) inflammation of the brain and spinal cord | - |
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| encephalon | (noun) that part of the central nervous system that includes all the higher nervous centers; enclosed within the skull; continuous with the spinal cord | Synonyms: brain |
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| encephalopathy | (noun) any disorder or disease of the brain | Synonyms: brain disease, brain disorder |
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| enchanter | (noun) a sorcerer or magician | - |
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| enchantingness | (noun) Quality of having the ability to enchant; being charming, delightful. | - |
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| enchantment | (noun) a magical spell | Synonyms: bewitchment |
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| (noun) a feeling of great liking for something wonderful and unusual | Synonyms: captivation, enthrallment, fascination |
| (noun) a psychological state induced by (or as if induced by) a magical incantation | Synonyms: spell, trance |
| enchantress | (noun) a female sorcerer or magician | Synonyms: witch |
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| (noun) a woman who is considered to be dangerously seductive | Synonyms: Delilah, femme fatale, siren, temptress |
| enchilada | (noun) tortilla with meat filling baked in tomato sauce seasoned with chili | - |
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| enchiridion | (noun) a concise reference book providing specific information about a subject or location | Synonyms: handbook, vade mecum |
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| enchondroma | (noun) benign slow-growing tumor of cartilaginous cells at the ends of tubular bones (especially in the hands and feet) | - |
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| encirclement | (noun) a war measure that isolates some area of importance to the enemy | Synonyms: blockade |
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| enclave | (noun) an enclosed territory that is culturally distinct from the foreign territory that surrounds it | - |
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| enclosing | (noun) the act of enclosing something inside something else | Synonyms: enclosure, envelopment, inclosure |
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| enclosure | (noun) the act of enclosing something inside something else | Synonyms: enclosing, envelopment, inclosure |
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| (noun) a structure consisting of an area that has been enclosed for some purpose | - |
| (noun) something (usually a supporting document) that is enclosed in an envelope with a covering letter | Synonyms: inclosure |
| (noun) a naturally enclosed space | Synonyms: natural enclosure |
| encoding | (noun) the activity of converting data or information into code | Synonyms: encryption |
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| encolure | (noun) the mane of a horse | - |
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| encomium | (noun) a formal expression of praise | Synonyms: eulogy, paean, panegyric, pean |
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| encompassment | (noun) including entirely | - |
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| encopresis | (noun) involuntary defecation not attributable to physical defects or illness | - |
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| encore | (noun) an extra or repeated performance; usually given in response to audience demand | - |
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| encounter | (noun) a minor short-term fight | Synonyms: brush, clash, skirmish |
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| (noun) a casual meeting with a person or thing | Synonyms: coming upon |
| (noun) a hostile disagreement face-to-face | Synonyms: confrontation, face-off, showdown |
| (noun) a casual or unexpected convergence | Synonyms: meeting |
| encouragement | (noun) the act of giving hope or support to someone | Synonyms: boost |
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| (noun) the expression of approval and support | - |
| (noun) the feeling of being encouraged | - |
| encroacher | (noun) someone who enters by force in order to conquer | Synonyms: invader |
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| encroachment | (noun) entry to another's property without right or permission | Synonyms: intrusion, trespass, usurpation, violation |
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| (noun) influencing strongly | Synonyms: impact, impingement |
| (noun) any entry into an area not previously occupied | Synonyms: intrusion, invasion |
| encrustation | (noun) a decorative coating of contrasting material that is applied to a surface as an inlay or overlay | Synonyms: incrustation |
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| (noun) a hard outer layer that covers something | Synonyms: crust, incrustation |
| (noun) the formation of a crust | Synonyms: incrustation |
| encryption | (noun) the activity of converting data or information into code | Synonyms: encoding |
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| enculturation | (noun) the adoption of the behavior patterns of the surrounding culture | Synonyms: acculturation, socialisation, socialization |
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| encumbrance | (noun) any obstruction that impedes or is burdensome | Synonyms: hinderance, hindrance, hitch, incumbrance, interference, preventative, preventive |
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| (noun) an onerous or difficult concern | Synonyms: burden, incumbrance, load, onus |
| (noun) a charge against property (as a lien or mortgage) | Synonyms: incumbrance |
| encyclical | (noun) a letter from the pope sent to all Roman Catholic bishops throughout the world | Synonyms: encyclical letter |
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| encyclopaedia | (noun) a reference work (often in several volumes) containing articles on various topics (often arranged in alphabetical order) dealing with the entire range of human knowledge or with some particular specialty | Synonyms: cyclopaedia, cyclopedia, encyclopedia |
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| encyclopaedism | (noun) profound scholarly knowledge | Synonyms: encyclopedism, eruditeness, erudition, learnedness, learning, scholarship |
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| encyclopaedist | (noun) a person who compiles information for encyclopedias | Synonyms: encyclopedist |
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| encyclopedia | (noun) a reference work (often in several volumes) containing articles on various topics (often arranged in alphabetical order) dealing with the entire range of human knowledge or with some particular specialty | Synonyms: cyclopaedia, cyclopedia, encyclopaedia |
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| encyclopedism | (noun) profound scholarly knowledge | Synonyms: encyclopaedism, eruditeness, erudition, learnedness, learning, scholarship |
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| encyclopedist | (noun) a person who compiles information for encyclopedias | Synonyms: encyclopaedist |
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| end | (noun) the part you are expected to play | - |
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| (noun) (American football) a position on the line of scrimmage, designating players at each end of the defensive line | - |
| (noun) a piece of cloth that is left over after the rest has been used or sold | Synonyms: oddment, remainder, remnant |
| (noun) a final part or section | - |
| (noun) the state of affairs that a plan is intended to achieve and that (when achieved) terminates behavior intended to achieve it | Synonyms: goal |
| (noun) the last section of a communication | Synonyms: close, closing, conclusion, ending |
| (noun) the final stage or concluding parts of an event or occurrence | Synonyms: last |
| (noun) either extremity of something that has length | Synonyms: terminal |
| (noun) a boundary marking the extremities of something | - |
| (noun) the surface at either extremity of a three-dimensional object | - |
| (noun) one of two places from which people are communicating to each other | - |
| (noun) (football) the person who plays at one end of the line of scrimmage | - |
| (noun) a final state | Synonyms: death, destruction |
| (noun) the point in time at which something ends | Synonyms: ending |
| endaemonism | (noun) an ethical system that evaluates actions by reference to personal well-being through a life based on reason | Synonyms: eudemonism |
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| endameba | (noun) any ameba of the genus Endamoeba | - |
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| endangerment | (noun) a source of danger; a possibility of incurring loss or misfortune | Synonyms: hazard, jeopardy, peril, risk |
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| endarterectomy | (noun) surgical removal of the inner lining of an artery that is clogged with atherosclerosis | - |
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| endarteritis | (noun) inflammation of the inner lining of an artery | - |
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| endband | (noun) a part of a book, most often found with hardcover bindings, that consists of a small cord or strip of material affixed near the spine to provide structural reinforcement and sometimes decorative effect. | - |
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| endearment | (noun) the act of showing affection | - |
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| endeavor | (noun) earnest and conscientious activity intended to do or accomplish something | Synonyms: attempt, effort, endeavour, try |
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| (noun) a purposeful or industrious undertaking (especially one that requires effort or boldness) | Synonyms: endeavour, enterprise |
| endeavour | (noun) earnest and conscientious activity intended to do or accomplish something | Synonyms: attempt, effort, endeavor, try |
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| (noun) a purposeful or industrious undertaking (especially one that requires effort or boldness) | Synonyms: endeavor, enterprise |
| endemic | (noun) a plant or animal that is native to a certain limited area | - |
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| (noun) a disease that is constantly present to a greater or lesser degree in people of a certain class or in people living in a particular location | Synonyms: endemic disease |
| endemism | (noun) nativeness by virtue of originating or occurring naturally (as in a particular place) | Synonyms: autochthony, indigenousness |
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| endgame | (noun) the final stages of a chess game after most of the pieces have been removed from the board | Synonyms: end game |
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| (noun) the final stages of an extended process of negotiation | Synonyms: end game |
| ending | (noun) the act of ending something | Synonyms: conclusion, termination |
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| (noun) the end of a word (a suffix or inflectional ending or final morpheme) | Synonyms: termination |
| (noun) the last section of a communication | Synonyms: close, closing, conclusion, end |
| (noun) event whose occurrence ends something | Synonyms: conclusion, finish |
| (noun) the point in time at which something ends | Synonyms: end |
| endive | (noun) variety of endive having leaves with irregular frilled edges | Synonyms: chicory escarole, escarole |
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| (noun) widely cultivated herb with leaves valued as salad green; either curly serrated leaves or broad flat ones that are usually blanched | Synonyms: Cichorium endivia, witloof |
| endlessness | (noun) the property of being (or seeming to be) without end | - |
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| endoblast | (noun) the inner germ layer that develops into the lining of the digestive and respiratory systems | Synonyms: endoderm, entoblast, entoderm, hypoblast |
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| endocarditis | (noun) inflammation of the endocardium and heart valves | - |
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| endocardium | (noun) the membrane that lines the cavities of the heart and forms part of the heart valves | - |
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| endocarp | (noun) the hard inner (usually woody) layer of the pericarp of some fruits (as peaches or plums or cherries or olives) that contains the seed | Synonyms: pit, stone |
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| endocervicitis | (noun) inflammation of the mucous lining of the uterine cervix | - |
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| endocranium | (noun) membrane lining the inside of the skull | - |
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| endocrine | (noun) the secretion of an endocrine gland that is transmitted by the blood to the tissue on which it has a specific effect | Synonyms: hormone, internal secretion |
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| (noun) any of the glands of the endocrine system that secrete hormones directly into the bloodstream | Synonyms: ductless gland, endocrine gland |
| endocrinologist | (noun) physician who specializes in the diagnosis and treatment of conditions affecting the endocrine system | - |
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